The EN- Official Light Stick Ver.2 is a free Android application designed to enhance the concert experience for fans using the Light Stick or Light Band. Key features include Bluetooth connectivity for easy pairing, a concert mode that synchronizes with ticket information to provide various stage effects, and a self mode that allows customization of the Light Stick's color, brightness, and blinking effects directly from the app.

Prior to a concert, users must register their ticket information and ensure proper pairing with their designated seats to fully enjoy the interactive features. The app requires specific permissions such as location, storage, NFC, and Bluetooth to function effectively, ensuring users have access to essential concert details and can control their Light Stick or Light Band seamlessly during events.